Rain or shine a free Paris tour starts at 11 AM & 1 PM.
Houses of Parliament in London - being impressive from outside offers even more exciting interior views and experience. UK residents and overseas visitors can come and watch Parliament at work for free.
Pantheon - one of the most remarkable buildings in Rome - can be visited free of charge.
Kaunas Free Tour lasts 3 hours unveiling the secrets of this unique city. It starts at 12 p.m., meet your guide in front of Kaunas White Church.
More than 7 million objects from all over the world illustrating the human history and culture.
One of the most impressive Gaudi's masterpieces in Barcelona - park Guell - can be visited with no admission fee. Plan at least few hours for an amazing walk.
(picture provided by Barcelona Turisme)
Another good walking tour in Barcelona - follow the architectural traces left by the most outstanding person in the history of Barcelona - Gaudi. Gaudi Free Walking tour is combined walking and two short metro trips (tickets not included) around Barcelona to give you an insight to the genius of his architecture. The tour starts from Place Real (meeting point at the water fountain), every day at 11:00 and lasts about 2.5h.
Many European cities have turned their underground train stations into a public art gallery you can enjoy for a price of a metro ticket. Lisbon metro is famous for its picturesque tiles or "azujelo", both historical and modern, and various art exhibits.