The easy and free way is to run my Google Colab notebook while you may want to run it locally, please read on.
Require Python 3.5+ and Jupyter notebook installed
git clone https://github.com/Tony607/Landmark-Retrival
pip3 install -r requirements.txt
Download the images.tar.gz and unzip it to the root of the project directory. In the project start a command line run
jupyter notebook
In the opened browser window open
Landmark-Recognition.ipynb