New York City is one of the most famous cities in the world. As such, it should be seen over the course of days. If you just have a long layover there like me, you do what you can to see the sights. This is a guide to what to see in NYC including the Brooklyn Bridge, Ground Zero, Freedom Tower, Times Square, Central Park, Katz Delicatessen, and the viewpoint at SUMMITOne Vanderbilt Tower.

There is more to Helsinki than it's gorgeous emerald-domed cathedral. This Scandinavia capital is replete with a ton of fantastic cafes that give great views of the capital countryside. The fortress of Suomenlinna is also just a ferry ride away and its solitude and quietness stands in great contrast to the city sounds just across the water.

This Scandinavian capital has loads of fascinating sights to see. Start at the Oslo Opera House and also check out Akershus Fortress, the Royal Palace, and Frogner Park. Make sure you don't miss the Kon-Tiki, Fram, and Viking Ship Museums on the Bygdøyfergene Peninsula as well.

Lisbon may be considered one of the most romantic cities in Portugal (let alone the world), but did you know you can also surf here too? In the town itself, check out the Tower of Belém, Castelo de S. Jorge, Carmo Convent, and Elevador da Bica. For a great bar with sweeping views of the city, head on over to PARK!

Uppsala is just 40 minutes north of Stockholm by train. It's the fourth largest city in Sweden (with a paltry 200k for population). Make no mistake, this charming city has great importance in Sweden as a whole. While here, you can enjoy Uppsala Castle and Linnaeum nearby. The best place in the city to experience the sunset and Uppsala Cathedral is right along the canal at Gotlandsparken.

The Art Nouveau style of the Latvian capital of Riga is a refreshing change from the skyscrapers that usually accompany capital cities. This city can be reached by bus, plane, or ferry and boasts city center attractions like Riga Castle, Three Brothers, House of the Blackheads, Swedish Gate, St. Peter's Church, and Riga Market.

This Chinese capital city is HUGE and it can be intimidating to see. The must-see stops of Beijing include The Forbidden City, Tianenmen Square, and the Summer Palace. You can also see different portions of the Great Wall from Beijing as well. Don't forget to sample the street food and spend some time in a tea house.

It can be argued that the biggest draw of Bangkok (and Thailand in general) is the food. In between meals, you can make your way up and down the Chao Phraya river by boat, stopping at different attractions along the way. These include Wat Arun, Wat Pho, The Grand Palace, Tha Tian Market, and Saranrom Park.

The Swedish capital of Stockholm is arguably the best in all of Scandinavia. An archipelago of 14 islands, the city offers great attractions and museums such as Fotografiska, Erik's Gondolen, Monteliusvägen, Gröna Lund, Gamla Stan, Riddarholm Church, Royal Palace, Vasa and ABBA Museums, and the Stockholm Tunnelbana.

Penon Penh and Siem Reap are the two must sees in Cambodia. The country is most well known for its collection of temples, in their highest concentration at Angkor Archeological Park (near Siem Reap). Here you can see world famous temples such as Angkor Wat, Angkor Thom, Bayon, Phnom Bakheng, Pre Rup, Preah Khan, and Temple Ta Prohm.