Buildings have gone from using lava as clay for walls to having the ability to electronically rotate to change up the view from the windows.
While architectural possibilities have grown to a whole new level, buildings are becoming more and more advanced — and more wacky.
Ahead, 19 odd buildings that will definitely cause some heads to turn.
This ice hotel in Quebec, Canada, is the perfect winter experience. With 500 tons of ice and 15,000 tons of snow, Hôtel de Glace is made every winter over a period of 5 weeks so that tourists can come and enjoy a cold stay.
The Legoland Hotel at Legoland in Carlsbad, California, was designed to look like it was made out of the famous tiny blocks.
Homeowners in Wenling, Zhejiang province, China, refused to sign an agreement to let their house get demolished, forcing this road to surround their house.
The Treehotel in Harads, Sweden, has rooms built high up in and around real, living trees. This hotel is every kid's dream.
This solar house in Strasbourg, France, also known as the "Hellodome", was built to provide cool temperatures in the summer and warmer temperatures in the winter, spring, and fall.
Ivory Coast's capital, Abidjan, is the home of the crocodile-shaped house.
This tiny, one-bedroom house on a rock in Bajina Basta, Serbia, was built in 1968.
This car has been turned into a room at a hotel in Amsterdam.
Wuxi, Jiangsu province, China, has a building shaped like a teapot that can rotate.
Built by the architect and homeowner, Bohumil Lhota, this house can turn when Lhota gets bored of the views. It is able to move up and down and even rotate on its sides.
Architects were really thinking out of the box when they decided to put this kindergarten's playground on the roof.
Built upside down, the Crazy House in Affoldern, Germany allows for photo illusions like this one, where it looks like people were standing on the ceiling.
A man in Nigeria had this airplane house made in honor of his wife and her love for travel.
A rock villa was built on top of a 26-story apartment building in Beijing, China. This villa includes plants and gardens, huge landscapes, and even a swimming pool.
China is also home to houses that were built on the roofs of factory buildings.
A resident and tourist attraction in Krasnoyarsk, Russia, is built upside down throughout the outside and the inside of the house.
Margate, England, has a piece of public art that looks like a sliding house.
This two-story house in Suwon, South Korea, is shaped like a toilet. Sim Jae-duck, also known as "Mr. Toilet," has made a living by making public restrooms beautiful. His house now helps him live up to his name.
Uyuni, Bolivia, also known as the largest salt flat in the world, is home to a salt hotel where everything, including decorations and seasoning for the food, is made of salt.