An endoscope, a thin tube containing a tiny camera, is inserted through your mouth and down into your stomach to look at the stomach lining. The doctor will check for inflammation and may perform a biopsy, a procedure in which a tiny sample of tissue is removed and then sent to a laboratory for analysis.
The nearest major airport is Paris Orly Airport (ORY / LFPO). This airport has international and domestic flights from Paris, France and is 19 km from the center of Eiffel Tower. Another major airport is Paris Charles De Gaulle Airport (CDG / LFPG), which has international and domestic flights from Paris, France and is 32 km from Eiffel Tower. Beauvais-TillÃ© Airport (BVA / LFOB) has international and domestic flights from Beauvais, France and is 87 km from Eiffel Tower.
Unless you are travelling in the middle of the night, this wiill be quicker than a taxi ride. The closest airport ever to Eiffel Tower is Velizy airport in Villacoublay to the southwest of Paris. It is about 11.5 km from the Tower in direct distance. By road, it is about 16 km taking about 22 minutes. Of course, this is not a commercial airport, but a military one. The next closest airport is Orly in the south of Paris which is about 15.6 km direct away from the Tower. By road, it is about 23.5 km taking about 25 minutes. The two main airports are Orly and Charles de Gaulle. Orly is closer to the Eiffel Tower, but Charles de Gaulle is larger with more flights. If you're planning on taking a taxi, then it's cheaper from Orly to the Eiffel Tower...about 35 euros from Orly compared to 50 euros from Charles de Gaulle. You can also take the Air France bus from either airport to the Eiffel Tower.